An optimum hot pressing technology was developed which yielded transparent fluoride ceramics with fast ionic conductivities (table 5). The preparation methods and physical properties of the ceramics were summarized.

V.Trnovcová, A.N.Smirnov, P.P.Federov, F.Hanic, V.Kliment, V.Smatko: Solid State Phenomena, 1994, 39-40, 231-4

 

 

 

Table 5

Conductivity Data for Hot-Pressed Fluorides

 

 

Material

 

0(S/cm)

 

Q(eV)

 

500K(S/cm)

 

 

ErF3

 

25

 

0.741

 

1 x 10-6

Ca0.9Y0.1F2.1

380

0.967

7 x 10-8

BaF2

77

0.803

6 x 10-7

Ba0.995Y0.005F2.005

169

0.694

1 x 10-5

Ba0.92Y0.08F2.08

140

0.704

1 x 10-5

Ba0.9Y0.1F2.1

215

0.735

1 x 10-5

Ba0.82Y0.18F2.18

126

0.696

1 x 10-5

Ba0.98Gd0.02F2.02

82

0.787

1 x 10-6

Ba0.85Gd0.15F2.15

325

0.746

1 x 10-5

Ba0.85Tb0.15F2.15

235

0.721

1 x 10-5

Ba0.7La0.3F2.3

114

0.551

3 x 10-4